CN104798886A - Production method for controlling total number of bacterium colonies in wet formula milk powder smaller than 1000cfu - Google Patents
Production method for controlling total number of bacterium colonies in wet formula milk powder smaller than 1000cfu Download PDFInfo
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- CN104798886A CN104798886A CN201410037808.7A CN201410037808A CN104798886A CN 104798886 A CN104798886 A CN 104798886A CN 201410037808 A CN201410037808 A CN 201410037808A CN 104798886 A CN104798886 A CN 104798886A
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Abstract
The invention discloses a production method for controlling the total number of bacterium colonies in wet formula milk powder smaller than 1000cfu, and belongs to the field of dairy product processing. The method adopting a wet technology concretely comprises the processes of raw milk control, raw milk acceptance, raw milk storage, milk purification, standardization, cooling storage, burdening, preheating, homogenizing, concentrating, highly pure steam injection, spray drying, powder sieving and packaging, wherein the main control process of the total number of bacterium colonies comprises the steps of control of the total number of bacterium colonies in the raw milk, control in the wet burdening process, and control of the total number of bacterium colonies in the concentration processing process. The method allows the safe formula milk powder with the total number of bacterium colonies of smaller than 1000cfu to be obtained by adopting a raw material temperature control technology, a vacuum burdening technology and a highly pure steam direct injection technology.
Description
Technical field
Control total plate count in wet method formula milk and be less than a production method of 1000cfu, belong to dairy product processing field.
Background technology
" melamine " event outburst in 2008, more highlight baby formula milk powder security significance, control of microorganisms is the basis of quality of milk powder safety, babies ' formula milk powder is the strictest dairy products of quality requirements, not only there is strict burden control to the trophic component composition in milk powder, and all will control microorganism sanitary index.Biological harm in dairy products mainly refers to that biology (especially microorganism) itself and metabolic process thereof, metabolite (as toxin) are to the pollution of raw material used in Dairy Processing process, process and product, comprising: (1) bacillary harm; (2) fungoid harm; (3) virus and the harm that causes of rickettsia; (4) harm that causes of parasitic disease.
" infant formula I " (GB10765), " infant formula II, III " (GB10766) and " Infant Formula Enterprises and infant supplement flour general technical specifications " (GB10767) three mandatory national standards, in above-mentioned standard regulation formula milk, total plate count is 10000cfu.Infant Formula Enterprises manufacturing enterprise produces in strict accordance with laws and regulations and normal structure, can ensure the quality and safety of product, but total plate count controls still there are potential risks at 10000cfu.In the compatibility that the existing intellectual property about formula milk of China mainly lays particular emphasis on milk powder and the appearance design of packaging bag, and formula composition patent is also less.Patent of invention CN1439276, according to the feature of breast milk nutritional labeling, for birth to 6 months baby's specialized designs, can provide the nutrition of general equilibrium for baby.Except with the addition of the necessary multivitamin of baby development and trace element in invention, also added VBT, taurine, beta carotene, nucleotides, lactoferrin etc., making its nutritional labeling more reasonable.Wherein composite trace element comprises one in ferrous lactate, zinc lactate, copper sulphate, Potassiumiodate, calcium carbonate, manganese sulfate and several.Patent of invention CN1107656 mono-kind with fresh milk, desalted whey powder, purified soyabean oil, make a gift of the raw materials such as sugar, maltodextrin, cream, B B-complex, composite trace element, isomerizing lactose, inositol and carnitine and make milk powder simulating breast milk for infants.Product lays particular emphasis on nutrient formulation, and the nutritional labeling that baby needs is complete, and absorption easy to digest, can make infantile health grow up.The formula of a patent of invention CN1300549 lactoferrin baby milk, its manufacture craft is first that raw milk is only newborn, then preheating, homogeneous, sterilization, concentrate, namely dust becomes semi-finished product, adds lactoferrin and mixes and be finished product, invention lays particular emphasis on manufacture craft.Patent of invention CN1459235 invention utilizes biotechnology the alpha-casein in cow's milk and beta lactoglobulin compound protease to be decomposed, and makes be difficult to digestion and have the protein-modified of sensitization, eliminates its impact.Invention successfully solves the bad difficult problem of product special flavour that fresh milk brings because of enzymolysis, is the innovation kind in dairy products.
Can find out from the situation analysis of above patent both at home and abroad, baby formula milk powder is still blank at present in control of microorganisms, the present invention adopts material temperature control technology, vacuum ingredients technical, the direct injection method of high-purity steam, can obtain total plate count and be less than the safe formula milk of 1000cfu.
Summary of the invention
Be devoted to the production method that control wet method formula milk total plate count is less than 1000cfu, belong to technical field of processing dairy products.
Its main production process is: fresh milk is checked and accepted, and----------cooling, temporary--sterilization, concentrated--spraying dry--connects powder, storage powder------dispatches from the factory packaging in the inspection of semifinished product by product inspection--warehouse-in--homogeneous batching breast only in cooling storage.Summary of the invention is: the 1) control of total plate count in raw material milk.The infectiousness pathogen such as staphylococcus aureus, free from lactose streptococcus in the former milk of effective control, total plate count is less than 100000cfu; 2) control in wet laid furnishes process.Control the original content of molds of different material in blending process, bring microorganism into and be less than 10000cfu, aerobic microorganism of controlling well is bred; 3) prepared burden and be cooled to rapidly 5 DEG C ± 1 DEG C storage afterwards; 4), in concentrated process, total plate count controls.Be processed into high-purity steam with deionized water through high-pressure installation and be directly injected to batching with former milk, fully contact, and be conveyed into economic benefits and social benefits concentrator by the stream pressure of high-purity steam, control total plate count and be less than 1000cfu;
Technical solution
Controlling the production method that total plate count in wet method formula milk is less than 1000cfu is: a 1) raw material milk requirement, must cool to rapidly 3 DEG C ± 1 DEG C by plate type heat exchanger after raw material milk enters hold-up tank.Transportation milk temperature should ensure to be no more than 8 DEG C; 2) prepare burden: adopt vacuum batching, more than vacuum degree control to-0.95Mpa, batch temperature controls at 80 ~ 85 DEG C; 3) high-purity steam directly sprays: material adopts high-purity steam directly to spray before spray drying, high-purity vapor (steam) temperature 125-165 DEG C; Steam barrier closes temperature 102-145 DEG C; Steam injection temperation 115-145 DEG C.High-purity steam in closed container with formula milk time of contact at more than 30min, milk concentration reduces and is less than 2%, is heated evenly thorough.
The invention provides material temperature control technology, vacuum ingredients technical, the direct injection method of high-purity steam, the production technology that total plate count is less than the safe formula milk of 1000cfu can be obtained.
Beneficial effect of the present invention
Compared with traditional milk powder producing method, the present invention adopts material temperature control technology, and effectively can control the infectiousness pathogen such as staphylococcus aureus, free from lactose streptococcus in former milk, total plate count is less than 100000cfu.
Compared with traditional milk powder producing method, the present invention adopts vacuum to prepare burden, and effectively can control the original content of molds of different material, bring microorganism into and be less than 10000cfu, and aerobic microorganism of controlling well is bred.
Compared with traditional milk powder producing method, adopt the direct injection method of high-purity steam, be processed into high-purity steam with deionized water through high-pressure installation and be directly injected to batching with former milk, abundant contact, and be conveyed into economic benefits and social benefits concentrator by the stream pressure of high-purity steam, the reduction of milk concentration is less than 2%, controls total plate count and is less than 1000cfu.
Comprehensively opinion, compared with background technology, the present invention adopts material temperature control technology, vacuum ingredients technical, the direct injection method of high-purity steam, can obtain total plate count and be less than the safe formula milk of 1000cfu.
Detailed description of the invention
Embodiment 1: in wet method formula milk, total plate count is less than the production method of 1000cfu
Step one: raw milk is checked, and raw milk is checked according to quality testing standard, must cool to rapidly 3 DEG C ± 1 DEG C after raw material milk enters hold-up tank by plate type heat exchanger.Transportation milk temperature should ensure to be no more than 8 DEG C;
Step 2: breast only, is separated with disc centrifuge, below 45 DEG C, removes the impurity in raw milk, dust and various non-laticiferous cell;
Step 3: preheating, is heated to 38 DEG C by the purification breast after purification, is beneficial to degreasing;
Step 4: degreasing, utilizes defatting machine to be separated by purification Ruzhong cream; By skimmed milk temperature adjustment to 50 DEG C;
Step 5: pasteurize, is heated to 80 ~ 85 DEG C by skimmed milk, keep 5 ~ 10min;
Step 6: batching, adopt vacuum batching, more than vacuum degree control to-0.95Mpa, batch temperature controls at 80 ~ 85 DEG C;
Step 7: homogeneous, the laboratory milk high pressure homogenizer homogeneous after concentrated, homogenizing temperature 68 DEG C, pressure 25MPa;
Step 8: Vacuum Concentration, adopts economic benefits and social benefits falling film type to concentrate, and the first effect Concentrated formulations breast is about 35%, vacuum-0.08MPa, and temperature is 48 DEG C; Second effect Concentrated formulations breast is about 50%, vacuum-0.08MPa, and temperature is 48 DEG C;
Step 9: high-purity steam directly sprays, material adopts high-purity steam directly to spray before spray drying, high-purity vapor (steam) temperature 125-165 DEG C; Steam barrier closes temperature 102-145 DEG C; Steam injection temperation 115-145 DEG C.High-purity steam in closed container with formula milk time of contact at more than 30min, milk concentration reduces and is less than 2%, is heated evenly thorough.
Step 10: spraying dry, first by filtered air by air blast inspiration, after being heated to 130 ~ 160 DEG C by air heater, send into spray drying chamber.The concentrated breast filtered delivered to sprayer by high-pressure pump simultaneously or be pumped to centrifugal spray rotating disk by milk, the emulsion droplet being sprayed into 10 ~ 20 microns contacts fully with hot-air, carries out strong heat exchange and mass transter, promptly gets rid of moisture, complete evaporation instantaneously, dry.Fall to bottom hothouse thereupon, constantly drawn off by thermopnore, powder delivery mechanism, cool in time, make moisture in milk powder between 2.5%-5%;
Step 11: aseptic packaging, adopts and automatically fills nitrogen milk powder packing machine;
Step 12: product inspection, by milk powder producing standard test.
Claims (4)
1. control total plate count in wet method formula milk and be less than a production method of 1000cfu, it is characterized in that:
1) control of total plate count in raw material milk.The infectiousness pathogen such as staphylococcus aureus, free from lactose streptococcus in the former milk of effective control, total plate count is less than 100000cfu;
2) control in wet laid furnishes process.Control the original content of molds of different material in blending process, bring microorganism into and be less than 10000cfu, aerobic microorganism of controlling well is bred;
3) prepared burden and be cooled to rapidly 5 DEG C ± 1 DEG C storage afterwards;
4), in concentrated process, total plate count controls.Be processed into high-purity steam with deionized water through high-pressure installation and be directly injected to batching with former milk, fully contact, and be conveyed into economic benefits and social benefits concentrator by the stream pressure of high-purity steam, control total plate count and be less than 1000cfu.
2. preparation method according to claim 1, is characterized in that raw material milk must cool to rapidly 3 DEG C ± 1 DEG C by plate type heat exchanger after entering hold-up tank.Transportation milk temperature should ensure to be no more than 8 DEG C.
3. preparation method according to claim 1, it is characterized in that adopting vacuum batching, more than vacuum degree control to-0.95Mpa, batch temperature controls at 80 ~ 85 DEG C.
4. preparation method according to claim 1, is characterized in that material adopts high-purity steam directly to spray before spray drying, high-purity steam in closed container with formula milk time of contact at more than 30min, milk concentration reduces and is less than 2%, is heated evenly thorough.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410037808.7A CN104798886A (en) | 2014-01-26 | 2014-01-26 | Production method for controlling total number of bacterium colonies in wet formula milk powder smaller than 1000cfu |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410037808.7A CN104798886A (en) | 2014-01-26 | 2014-01-26 | Production method for controlling total number of bacterium colonies in wet formula milk powder smaller than 1000cfu |
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| CN104798886A true CN104798886A (en) | 2015-07-29 |
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| CN201410037808.7A Pending CN104798886A (en) | 2014-01-26 | 2014-01-26 | Production method for controlling total number of bacterium colonies in wet formula milk powder smaller than 1000cfu |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101779703A (en) * | 2010-04-09 | 2010-07-21 | 黑龙江省完达山乳业股份有限公司 | Low-lactose milk powder and preparation method thereof |
| CN102217674A (en) * | 2011-05-06 | 2011-10-19 | 中国农业科学院农产品加工研究所 | Method for preparing low-heat milk powder |
| CN102475146A (en) * | 2010-11-22 | 2012-05-30 | 嘉兴市家家乐食品有限责任公司 | Production method for controlling microbes in dried tofu by combination with cold chain |
| CN103168839A (en) * | 2011-12-22 | 2013-06-26 | 浙江贝因美科工贸股份有限公司 | Preparation process of infant formula milk powder |
-
2014
- 2014-01-26 CN CN201410037808.7A patent/CN104798886A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101779703A (en) * | 2010-04-09 | 2010-07-21 | 黑龙江省完达山乳业股份有限公司 | Low-lactose milk powder and preparation method thereof |
| CN102475146A (en) * | 2010-11-22 | 2012-05-30 | 嘉兴市家家乐食品有限责任公司 | Production method for controlling microbes in dried tofu by combination with cold chain |
| CN102217674A (en) * | 2011-05-06 | 2011-10-19 | 中国农业科学院农产品加工研究所 | Method for preparing low-heat milk powder |
| CN103168839A (en) * | 2011-12-22 | 2013-06-26 | 浙江贝因美科工贸股份有限公司 | Preparation process of infant formula milk powder |
Non-Patent Citations (2)
| Title |
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| 房宁: "以高标准管控产业链贡献好奶粉", 《农民日报》 * |
| 无: "近期国际乳品行业市场动向及行情一览", 《乳品与人类》 * |
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Application publication date: 20150729 |